where \(\)  is the system (impedance) matrix and \(\)  collects the projections of electric excitation onto the used basis functions. In this paper, system matrix \({Z}\)  comes from the application of the Galerkin method [1]} or MoM [2]}, [3]}, to the electric field integral equation. Loop-star decomposition [4]} has been employed to allow the operation under quasistatic conditions. In all studied cases, the current density was composed of loop-like currents which assures a vanishing divergence of current density. The decomposition is performed numerically with high precision, considering the electric energy to be vanishingly small as compared to magnetic energy.
